package com.xiangge.juanzi;

import java.util.Arrays;

public class Demo1 {
    public static void main(String[] args) {
        int[] arr = {1,2,3,4,5,6,7,8,9,10};
        for (int i = 0; i < arr.length/2; i++) {
            int temp = arr[arr.length-1-i];
            arr[arr.length-1-i] = arr[i];
            arr[i] = temp;
        }
        System.out.println(Arrays.toString(arr));
    }
}
